bjoernager/rust
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Add codegen for global_asm! sym operands

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This commit is contained in:
Amanieu d'Antras 2022-03-01 00:53:25 +00:00
parent dc345d8bff
commit 547405e801
11 changed files with 137 additions and 22 deletions
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19
compiler/rustc_codegen_llvm/src/base.rs
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@ -99,15 +99,6 @@ pub fn compile_codegen_unit(tcx: TyCtxt<'_>, cgu_name: Symbol) -> (ModuleCodegen
attributes::apply_to_llfn(entry, llvm::AttributePlace::Function, &attrs);
}
// Run replace-all-uses-with for statics that need it
for &(old_g, new_g) in cx.statics_to_rauw().borrow().iter() {
unsafe {
let bitcast = llvm::LLVMConstPointerCast(new_g, cx.val_ty(old_g));
llvm::LLVMReplaceAllUsesWith(old_g, bitcast);
llvm::LLVMDeleteGlobal(old_g);
}
}
// Finalize code coverage by injecting the coverage map. Note, the coverage map will
// also be added to the `llvm.compiler.used` variable, created next.
if cx.sess().instrument_coverage() {
@ -122,6 +113,16 @@ pub fn compile_codegen_unit(tcx: TyCtxt<'_>, cgu_name: Symbol) -> (ModuleCodegen
cx.create_compiler_used_variable()
}
// Run replace-all-uses-with for statics that need it. This must
// happen after the llvm.used variables are created.
for &(old_g, new_g) in cx.statics_to_rauw().borrow().iter() {
unsafe {
let bitcast = llvm::LLVMConstPointerCast(new_g, cx.val_ty(old_g));
llvm::LLVMReplaceAllUsesWith(old_g, bitcast);
llvm::LLVMDeleteGlobal(old_g);
}
}
// Finalize debuginfo
if cx.sess().opts.debuginfo != DebugInfo::None {
cx.debuginfo_finalize();